Hematopoeisis is adversely affected, most notably in itai-itai disease where severe anemia is observed, in association with marked suppression of erythropoietin production . Hemolysis may also be a factor in producing Cd-associated anemia, which may produce iron-deficient indices despite increased body Fe stores resulting from hemolysis and increased duodenal Fe absorption .
Welding apprentices learn the full range of manual, semiautomatic and automatic welding processes in the shipyard's welding school. They use a wide range of metals and welding processes to perform structural and pipe welds in all phases of ship construction.
Carpentry is another profession learned through apprenticeship. An apprenticeship is a system of training a new generation of practitioners of a trade or profession with on-the-job training and often some accompanying study (classroom work and reading). Apprenticeship also enables practitioners to gain a license to practice in a regulated profession.